These tutorial articles and presentations are primarily intended for instructors, but could be useful for advanced students as well. They demonstrate how ChemReaX can be used as a virtual lab in general chemistry and physical chemistry courses in undergraduate and high-school AP/IB programs. We will draw on selected topics in chemistry to illustrate how simulation-based lab activities can be designed around ChemReaX, enabling students to learn critical chemistry concepts through virtual experimentation, data collection and data analysis.